Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

If the interest on 1700 rupees is 340 rupees is for 2 year the rate of interest must be

Answer»

Answer:

the rate should be 10%

Step-by-step explanation:

FIRSTLY.

R=SI * 100/P*T

so 340*100/1700*2then we will cut two zeros of 1700 from 100

and then if we cut 340 from 17 we will get 20

and then we will cut 20 from 2 and 10% will left

so in this WAY rate =10%

Please follow and LIKE my answer

2.

If 3^2x-1 - 9^x-1=1458,find the value of x

Answer»

Answer:

please clarifiy the QUESTION.

is it 3 POWER (2x-1) - 9 power(x-1) = 1458 ?

Step-by-step explanation:

3.

Square root of 177 mutiplied with square root of 1573 give detail answer

Answer»

Answer:

Square root of 177 is 13.3041346957

Square root of 1573 is 39.6610640301

After that we have to MULTIPLY both of them with each other

= 13.3041346957 × 39.6610640301

= 572.6561380312

Hope it's HELPFUL to you

PLEASE mark it as BRAINLIEST

4.

Weight is measured in units ----_----and ​

Answer»

Step-by-step EXPLANATION:

KILO gram is SI UNIT

gram is cgs unit

5.

Verify the property:a x b =b x a by taking a=1/3 and b=2/7​

Answer»

ANSWER:

here is your answer

it is associative property

Step-by-step EXPLANATION:

please MARK it as branliest

6.

Colin invests £3300 into his bank account.He receives 3% per year compound interest. How much will Colin have after 4 years? Give your answer to the nearest penny where appropriate

Answer»

Answer:£4,837

Colin INVESTS £4300 and receives a compound interest of 4% per year.

All we need is the amount of money Colin will have at the end of the three years.

Compound interest is calculated as follows;

1st year: INVESTED amount × the rate. This gives you the interest earned.

4300 × (4/100) = 172

2nd year: add the interest earned in the first year to the invested amount. Multiply the sum you get by the rate, to get the interest of the SECOND year.

4300 + 172 = 4472

4472 × (4/100) = 178.88

3rd year: add to the invested amount, the interest earned in the first and the second year and multiply the sum by the rate of interest.

172 + 178.88 + 4300 = 4650.88

4650.88 × (4/100) = 186.03

After GETTING the rates of the three years, add them to the invested amount to get what Colin will have after the three years.

4300 + 172 + 178.88 + 186.03 = 4836.91

The question requires that you give the answer to the nearest pound. Therefore we are going to round off from the decimal point. Since we have .9, which is more than HALF, we will add one to the 6 and do away with the numbers after the decimal point.

Colin will have £4837

Hope it helped u..✌️✌️

7.

Find the value of square root 248 + 52 + root 4​

Answer»

√ [248+√ (52+√ 4)]
√ [248+√ (52+2)]
√ [248+√ (54)]
√ [248+7.3] (ROUND off)
√ (248+7)
√ 255
15.9

8.

All possible pair of odd number 17 to 23​

Answer»

Answer:

17,19,13

Step-by-step EXPLANATION:

9.

6+5+4 = 158+7+6 = 10710+9+8 = 43612+11+10=??​

Answer»

ANSWER:

Step-by-step explanation:

867

10.

· Use the column method to find the following products:(a) (3a + 5)(2a – 3)​

Answer»

Answer:

6a^2+a-15

Step-by-step explanation:

6a^2+10a-9a-15

=6a^2+a-15

11.

Class 8 Rs Aggarwal exercise 2a

Answer»

ANSWER:

ACOUSTIC instruments, Electrical instruments, Living beings LIKE animals and birds USING their vocal cords, Man-made sources like machines, any vibration caused by WIND are five sources of sound.

12.

Calculate the number of atoms present in 10litres of carbondioxide

Answer»

Step-by-step EXPLANATION:

............................

13.

How many elecrons will be present in the subshellls having value of 1/2 for n=2

Answer»

ANSWER:

very very SORRY I didn't KNOW

14.

Express 25. 125 in p/q form

Answer»

Answer:

25125/1000

Step-by-step EXPLANATION:

As there are THREE ZEROS after the DECIMAL POINT

15.

Let E=3, B=7 andA=4.Find the other digits in the sum : BASE+BALL=GAMES

Answer»

The other DIGITS are G = 1, S = 8, L = 5 and M = 9.

Step-by-step EXPLANATION:

Let E = 3, B = 7 and A = 4.

BASE + BALL = GAMES

BASE ------->  7483

BALL---------> 7455

_______________

GAMES------>14938

If we take G = 1, S = 8, L = 5 and M = 9.

Our LOGIC will be satisfied.

Hence, the other digits are G = 1, S = 8, L = 5 and M = 9.

16.

(4-1/3x)^2 Simplify using proper identity

Answer»

ANSWER:

(a-b)^2

(a^2-2ab+b^2)

16-8/3x+1/9x^2

17.

2) If the radius of the sphere is increased by 100%, the volume of the corresponding sphere is increased by

Answer»

Answer:

volume of sphere will be = 4/3×π(2R)^3

Step-by-step EXPLANATION:

let radius=r

volume of sphere=4/3 πr^3

if radius is increased by 100%

then,r = r+100% of r

r = 2r

therefore, volume of sphere=4/3× π(2r)^3

18.

The medians of first is terms of two arithmetic sequence with same common difference are 25 and 28 question a__ find the sum of first is term of these two arithmetic sequence question B__what is the difference between the sum of first hundred term of these two sequence

Answer»

ANSWER:

which CLASS TRY CONNECT APA

19.

How to write irrational no. Between two rational no.

Answer»

Answer:

suppose the two rational numbers are 1 and 2, then the irrational numbers between them can be 1.0100100001000001...., 1.14159265.....

Step-by-step EXPLANATION:

you can SELECT any random series of numbers which don't form a pattern between the two numbers.

Don't FORGET to put the dots after five or six decimal places

20.

If 3sin alpha=5sin beta then tan alpha +beta/2/tan alpha - beta/2 is

Answer»

Answer:

54

Step-by-step EXPLANATION:

HH kkkk

21.

Which of the following number are even and which are odd 144,321,253

Answer»

ANSWER:

EVEN no. 144

Step-by-step EXPLANATION:

I THINK it HELPS you

22.

Six years hence, a father's age will be twice the age of his son. Eightyears ago, the father was four timesas old as his son. Find their present ages.

Answer»

Let the present age of father be F years and the age of his SON be S years.

Six years hence, a father's age will be twice the age of his son.

Six years hence, age of father = (F + 6) years

Age of son = (S + 6) years

According to question,

Six years hence, the age of father = 2(Six years hence, the age of his son)

⇒ F + 6 = 2(S + 6)

⇒ F + 6 = 2S + 12

⇒ F = 2S + 12 - 6

⇒ F = 2S + 6

Eight years ago, the father was four times

as OLD as his son.

Eight years ago, the age of father = (F - 8) years

And age of his son = (S - 8) years

According to question,

⇒ F - 8 = 4(S - 8)

⇒ F - 8 = 4S - 32

⇒ F = 4S - 24

On COMPARING we get,

⇒ 4S - 24 = 2S + 6

⇒ 4S - 2S = 6 + 24

⇒ 2S = 30

⇒ S= 15

Substitute value of S in F

⇒ F = 2(15) + 6

⇒ F = 30 + 6

⇒ F = 36

Therefore, the present age of the father is 36 years and son is 15 years.

23.

Subtract the quotient of 100+50 from the product of 100 x 50.

Answer»

Answer:

Addition of 100 +50=150

Product of 100 ×50 =5000

Then we have to SUBTRACT these digits

5000-150 =4850

Answer is 4850

HOPE it WOULD be HELPFUL to you

PLEASE mark it as brainliest

24.

The perimeter of a rectangle is 70cm and its diagonal is 25cm. Find the area of the rectangle.

Answer»

PERIMETER of rectangle=70cm

Diagonal=25cm

p=2×(70+25)

p=2×95

Area of rectangle=190cm

25.

Prove that 5-2√5 is irrational​

Answer»

Answer:

Let us assume on the CONTRARY that 5+​​ ROOT 2 is rational.

Then, there exist co-prime a and b(b not equal to 0), such that

5+ root 2= a by b

= root 2= a by b--2

= root 2 =a--2b by b

= root 2 is rational [Therefore, 5, a & b are INTEGERS, a--2b by b is a rational number]

This contradicts the fact the root 2 is irrational.

The contradiction has arisen because of our incorrect ASSUMPTION that 5+ root 2 is rational.

Hence, 5+root 2 is irrational.

Hope this helps :D

26.

Prous that at 2+5√3 is an irrational number given that 3 is an irrational number​

Answer»

Let us suppose that 2+5root3 is rational.

Then,

2+5root3-2 should also be rational.[Rational-Rational=Rational]

So,

Let us now suppose that 5root3 is rational

Then,

5root3÷5 should also be rational.[Rational÷Rational=Rational]

So, ROOT 3 is rational.

But it is given that root 3 is IRRATIONAL.[If 3 is irrational, then root 3 should also be irrational.]

This is a contradiction created because of our assumption that 2+5root3 is rational.

So, we are FORCED to CONCLUDE that 2+5root3 is irrational.

Please mark the ANSWER brainliest if you think that this answer deserves it.

27.

A toy is in the form of cone and the radius is 3.5 mounted on a hemisphere of same radius. The total height of toy is 15.5 cm. Find the total surface area of the toy.*Do only if you know it otherwise don't do it*​

Answer»

Answer:

hiii

your answer is here !

Step-by-step EXPLANATION:

HEYA _________________________________

heya _________________________________TSA of CONE = 214.5

heya _________________________________TSA of cone = 214.5→ pls REFER to the attachment for further details

follow me !

✌️✌️✌️✌️✌️

28.

The sum of two rational number is -8.if one of them is -15/7, find the other​

Answer»

Answer:

Let the ANOTHER number be X

According to the question

=> - 15/7 + x = - 8

=> x = - 8 + 15/7

=> x = - 41/7

29.

Ronit takes 3/4 hours to clean a hotel room. If he works non-stop for 6 hours, how many hotel rooms will he be able to clean?I will mark the best answer brainliest​

Answer»

Answer:

according to question

3/4×x=6

3 cancels 6 by 2

then x/4 =2

by CROSS multiplication

we get X=8

therefore he can clean 8 ROOMS

30.

Solve :x^2 = 2 (11x - 48)​

Answer»

Answer:

47

Step-by-step EXPLANATION:

HH

31.

Solve my problem please please please

Answer»

ANSWER:

{x}^{2}  - 4 \\  =  {x}^{2} -   {2}^{2}  \\  =  (x + 2)(x - 2) \\  \\  {x}^{2}  - 9 {y}^{2}  \\  =  {x}^{2}  -  {(3y)}^{2}  \\  = (x + 3y)(x - 3y) \\  \\  \\ 25 {a}^{2}  - 36 {b}^{2}  \\  =  {(5a)}^{2}  -  {(6b)}^{2}  \\  = (5a + 6b)(5a - 6b) \\  \\  \\ 144 -  {x}^{2}  {y}^{2}  \\  =  {12}^{2}  -  {(xy)}^{2}  \\  = (12 + xy)(12 - xy)

32.

2x4+5x3-7x2-15x-14 divided by x-2 ​

Answer»

\huge{ \underline{ \red{A} \green{N} \purple{S} \orange{W} \blue{E} \pink{R}}}

# mark it as the BRAINLIEST

# thank TOH kardo BHAI

33.

In a class test the mean of Mark's scored by a class of 40 students was calculated as 18.2.Later on it was detected that the marks of one student was wrongly copied as 21 instead of 29. Find the correct mean.

Answer»

Correct Mean is 18.4.

Step-by-step explanation:

We are given that in a class test the mean of Mark's scored by a class of 40 students was calculated as 18.2.

Later on it was detected that the MARKS of ONE student was wrongly copied as 21 instead of 29.

As we know that, Mean formula is given by;

                Mean  =  \frac{\text{Total sum of all the <klux>OBSERVATIONS</klux>}}{\text{Number of observations}}

                                    Or

                       \bar X =\frac{\sum X }{\text{n}}

where,  \sum X  =  Total sum of all observations in the data

                  n  =  Number of observations

So,  Incorrect \sum X  = \bar X \times n        {as we are given Mean = 18.2 and n = 40}

                                = 18.2 \times 40 = 728

Now, we are are given that it was detected that the marks of one student was wrongly copied as 21 instead of 29;

So, the correct  \sum X  =728 - 21 + 29 = 736

And the total number of students now = 40 - 1 + 1 = 40

Hence, the correct mean  =  \frac{736}{40}  = 18.4.

34.

30x²-15x+1=0 what will be value of x

Answer»

you can SEE..this solution dear....hope it helps you.....!!! we can SOLVE this ACCORDING to quadratic FORMULA....

35.

Find the value of root 48 + root 52 + root 4​

Answer»

Answer:

16.14 ( rounded-off)

Step-by-step EXPLANATION:

√48+√52+√4

= 6.928+7.211+2

=16.139

36.

The sold price of 12 eggs is equal to cost price of 16 eggs. Find the profit percentage​

Answer»

⠀⠀ıllıllı uoᴉʇnloS ıllıllı

\setlength{\unitlength}{1.0 cm}}\begin{picture}(<klux>12</klux>,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.2){\line(1,0){6.5}}\end{picture}

Let selling price of 12 eggs = x

Then the COST price of 16 eggs = x

The selling price of 1 egg = x/12

Therefore:

The cost price of 1 egg = x/16

We know that:

  • Selling price > cost price

Therefore:

The PROFIT = Selling price - Cost price

= x/12 - x/16

= x/48

Profit % = (Profit/Cost price) x 100%

  • 33%

\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.2){\line(1,0){6.5}}\end{picture}

37.

Factorise the following expression p square - 10 P +24​

Answer»

hey MATE here is UR answer

p²-10p+24

=p²-6p-4p+24

=p(p-6)-4(p-6)

=(p-4)(p-6).

hope it HELPS.

38.

Solve : x^2 - x - 132 =0​

Answer»

ANSWER:

{x}^{2}  - x - 132  \\ =  > {x}^{2}  - 12x + 11x - 132 \\   =  > x(x - 12) + 11(x - 12)  \\  =  > (x - 12)(x + 11) \\  =  > x = 12 \:  \: {or} \: x =  - 11

39.

3 men or 6 boys can do a work in 20 days, then 6 men and 8 boys shall take:​

Answer»

Answer:

6 men and 8 BOY shall take 10 days to COMPLETE it

40.

Find the roots of the equation x^2-2x+1

Answer»

ANSWER:

it's both ROOTS are same i.e. 1

41.

ஒரு மனிதன் கையில் சிறுது பணம் எடுத்துக்கொண்டு தன்வீட்டிலிருந்து நான்கு கோவில்களுக்கு செல்கிறான்.1. முதல் கோவிலுக்கு சென்ற போது அவன் கையில் உள்ளபணம் இரண்டு மடங்காகிறது. அவன் ரூ.100 உண்டியலில்போட்டுவிட்டு கிளம்பினான்.2. இரண்டாவது கோவிலுக்கு சென்ற போதும் கையில் உள்ளபணம் இரண்டு மடங்காகிறது. அங்கும் ரூ.100 உண்டியலில்போட்டுவிட்டு கிளம்பினான்.3. மூன்றாவது கோவிலுக்கு சென்ற போதும் கையில் உள்ளபணம் இரண்டு மடங்காகிறது. அங்கும் ரூ.100 உண்டியலில்போட்டுவிட்டு கிளம்பினான்.4. நான்காம் கோவிலுக்கு சென்ற போதும் கையில் உள்ளபணம் இரண்டு மடங்காகிறது. அங்கும் ரூ.100 உண்டியலில்போட்டுவிட்டு வீடு திரும்புகிறான். ஆனால் தற்போது அவன்கையில் ஒரு ரூபாய் கூட இல்லை .கேள்வி: அவன் வீட்டிலிருந்து கிளம்பும்போது எவ்வளவுபணம் கொண்டு சென்றான்???​

Answer»

ANSWER:

SORRY DEAR I don't KNOW the answer dear......

42.

Multiply -8/14×6/15​

Answer»

HEY MATE here is UR ANSWER

-8/14×6/15 = -4/7×2/5

=-8/35

hope it HELPS.

43.

Write the roster form of setx -1-:2

Answer»

ANSWER:

what do you WANT to ASK.........

44.

Solve : 21x = 196 - x^2​

Answer»

Step-by-step explanation:

x² + 21X - 196 = 0

x² + 28X - 7x - 196 = 0

x(x + 28) - 7(x + 28) = 0

(x + 28) (x - 7) = 0

x = -28 , 7

45.

Find the value of square root 248 + square root 52 + root 4​

Answer»

Step-by-step EXPLANATION:

I not II did not KNOW this ANSWER because this is very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very DIFFICULT

46.

A^2+b^2÷4+c^2÷9+ab+bc÷3+2÷3ca​

Answer»

ANSWER:

a^2+b^2÷4+c^2÷9+ab+bc÷3+2÷3ca

47.

Mode of fist 10 natural numbers is​

Answer»

Answer:

1,2,3,4,5,6,7,8,9,10

48.

Writetheperfectsquarers between100and 150​

Answer»

Answer:

FIND the two numbers:

11 x 11 = 121

12 x 12 = 144

Hope this HELPS :D

49.

Find the value of x 2^1x+1=17.2^x​

Answer»

I don’t REALLY KNOW if this is the ANSWER but I GUESS it is

50.

Write the set builder form of a) X={5,25,125,625....}b) Y={a,e,i,o,u}​

Answer»

a). X = { a | a = 5^N where n € N }

B). Y = { b | b is a VOWEL }